SPH ANALYSIS PROJECTILE SOIL 3 D PROJECTILE MOTION

SPH ANALYSIS – PROJECTILE SOIL 3 D PROJECTILE MOTION PROJECTILE SOIL TOP VIEW SIDE VIEW 1

PROJECTILE & SOIL IMPACT SPH Velocity Motion Y direction 1000 mm/s PROJECTILE – steel SOIL 1. Dirt MAT-014 2. Sand damped MAT-014 3. Sand dry & loose MAT-005 2

GEOMETRY AND UNITS tonne: mm: ms Spacing between particles 10 mm 3

MODEL AND LOADING Velocity Motion Y direction 1000 mm/s 4

BC Soil inner nodes BC Projectile nodes BC Soil outer nodes X Y Z TRANS free fixed ROT fixed free X Y Z TRANS fixed ROT fixed BOUNDARY CONDITIONS 5

ANALYSIS MATERIAL DEFINITION +ve -ve 6

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1. SAND MAT-005 ANALYSIS MATERIAL DEFINITION 2. SAND MAT-014 3. SOIL MAT-014 Pressure (MPa) Versus Strain (ln(V/V 0) 9

Dirt SOIL_MAT_014 10

Dry & loose sand SAND_MAT_014 11

Damped sand SAND_MAT_005 12

NUMERICAL ENGINEERING SOLUTIONS RESULTS 13

LS-DYNA RESULTS THREE SCENARIOS 1. SAND MAT-005 2. SAND MAT-014 3. SOIL MAT-014 14

SAND-1 DAMPED Sand deformation SAND MAT_005 15

PART ID NAME ID 1001 Projectile ID 2000 Soil SAND MAT_005 Projectile 1000 mm/s Soil 16

Projectile Displacement SAND MAT_005 17

Projectile Velocity SAND MAT_005 18

Reaction Contact Force Projectile and SAND MAT_005 19

Von Mises Stress in Projectile SAND MAT_005 20

Scenario Timing SAND MAT_005 21

SAND-2 DRY LOOSE Sand deformation SAND MAT_014 22

PART ID NAME ID 1001 Projectile ID 2000 Soil SAND MAT_014 Projectile 1000 mm/s Soil 23

Projectile Displacement SAND MAT_014 24

Projectile Velocity SAND MAT_014 25

Reaction Contact Force Projectile and SAND MAT_014 26

Von Mises Stress in Projectile SAND MAT_014 27

Scenario Timing SAND MAT_014 28

SOIL MAT_014 29

PART ID NAME ID 1001 Projectile ID 2000 Soil Projectile 1000 mm/s Soil 30

Projectile Displacement SOIL MAT_014 31

Projectile Velocity SOIL MAT_014 32

Reaction Contact Force Projectile and Soil SOIL MAT_014 33

Von Mises Stress in Projectile SOIL MAT_014 34

Scenario Timing SOIL MAT_014 35